SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Function sum (children 1)
       ExpressionList (children 1)
        Function equals (children 1)
         ExpressionList (children 2)
          Function lowerUTF8 (children 1)
           ExpressionList (children 1)
            Function materialize (alias str) (children 1)
             ExpressionList (children 1)
              Literal \'aaaaaaaaaaaaaaa012345789,.!aaaa\'
          Identifier str
      Function count (children 1)
       ExpressionList
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.one
    TablesInSelectQueryElement (children 1)
     ArrayJoin (children 1)
      ExpressionList (children 1)
       Function range (alias n) (children 1)
        ExpressionList (children 1)
         Literal UInt64_16384